diff --git a/.travis.yml b/.travis.yml
index cd29c9f0fa28..9843b88b49ac 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,8 +7,14 @@ go:
   - 1.10.x
   - master
 
+env:
+  matrix:
+    - MODE=default
+    - MODE=breaking
+
 matrix:
   allow_failures:
+    - env: MODE=breaking
     - go: master
 
 install:
@@ -17,9 +23,16 @@ install:
   - dep ensure
 
 script:
-  - bash rungas.sh
-  - grep -L -r --include *.go --exclude-dir vendor -P "Copyright (\d{4}|\(c\)) Microsoft" ./ | tee /dev/stderr | test -z "$(< /dev/stdin)"
-  - test -z "$(go build $(go list ./... | grep -v vendor) | tee /dev/stderr)"
-  - test -z "$(go fmt $(go list ./... | grep -v vendor) | tee /dev/stderr)"
-  - go vet $(go list ./... | grep -v vendor)
-  - go test $(sh ./findTestedPackages.sh)
+  - >-
+    if [[ $MODE == 'default' ]]; then
+      bash rungas.sh
+      grep -L -r --include *.go --exclude-dir vendor -P "Copyright (\d{4}|\(c\)) Microsoft" ./ | tee /dev/stderr | test -z "$(< /dev/stdin)"
+      test -z "$(go build $(go list ./... | grep -v vendor) | tee /dev/stderr)"
+      test -z "$(go fmt $(go list ./... | grep -v vendor) | tee /dev/stderr)"
+      go vet $(go list ./... | grep -v vendor)
+      go test $(sh ./findTestedPackages.sh)
+    fi
+  - >-
+    if [[ $MODE == 'breaking' ]]; then
+      go run ./tools/apidiff packages ./services HEAD~1 latest --breakingchanges --verbose
+    fi